Foundation-ring for steam-boilers.



P. T. DUNLOP & H. W. JACOBS. FOUNDATION mus FOR STEAM BOILERS.

APPLICATION HLED MAY 17 1915- 1 ,1 97,806. Patented Sept. 12, 1916.

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Wifness P. T. DUNLOP & H. W. JACOBS.

FOUNDATION RING FOR STEAM BOILERS. APPLICATION FILED MAY IT, I915- 1,197,806. Patented Sept. 12,1916.

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PATRICK TRESTON DUNLOP, OF SPRINGFIELD, MISSOURI, AND HENRY W. JACOBS, OF

TOPEKA, KANSAS.

FOUNDATION -RIN G FOR STEAM-BOILERS.

Specification of Letters Patent.

Patented Sept. 12, 1916.

Application filed May 17, 1915. Serial N 0. 28,520.

To all whom it may concern:

Be it known that we, PATRICK T. DUNLOP and HENRY WV JAooBs, citizens of the United States, and residing at Springfield, in the county of Greene and State of Missouri, and at Topeka, in the county of Shawnee and State of Kansas, respectively, have invented certain new and useful Improvements in Foundation-Rings for Steam-Boilers, of which the following is a description, reference being had to the accompanying drawings, which form a part of our specification.

Our invention relates to foundation rings more especially adapted for use in connection with the open type or locomotive boilers which are provided with upwardly presented water-tubes whereby circulation between the lower and upper part of the fire-box of the boiler may be had.

The object of our invention is to provide a foundation ring for a boiler of the class specified, which will provide water-circulating chambers in the foundation rings arranged to have communication not only with the water-tubes of the fire-box, but also with the water-legs which are provided intermediate of the flue-sheet and throat-sheet and intermediate of the door-sheet and backhead of the fire-box of the boiler.

A further object of our invention is to provide a foundation ring wherein the sections or portions-provided with the waterare connected with the hollow longitudinal sections of the foundationring, so as to .ent able circulation between the hollow or chambered portions of the foundation ring and the front and back water-legs of the boiler.

s is apparent from the foregoing statements, the invention provides a foundation ring made in sections, the varlous sections, however, being arranged to be rigidly or permanently secured together in any suitable manner, as, for example, by welding the sections together so as to form a pro er water-tight construction, as will be fully understood from the following detailed description of the drawings wherein Figure 1 is a perspective view of one form of our improved foundation ring-partially shown in section, with an end of one .of the longitudinally disposed sections being shown unattached to the transversely extending section. Fig. 2 is a. vertical cross-section of a hollow longitudinal section illustratin one'form of our invention, composed of a top or inverted U-shape channel section to which a flat bottom is welded. Fig. vertical sectional view of a modified form of hollow longitudinal section of the foundation ring, wherein the bottom is arranged slightly above the lower edges of the side walls. Fig. 4 is a vertical cross-section of tion of the longitudinalsection of a foundation ring, wherein thebottom or lower part of the longitudinal section is'welded to the side wall thereof. w

Our invention contemplates foundation g transversely or sections of the foundatlon ring; the transversely disposed portions of the foundationring being preferably made of cast steel, or other suitdescribed, enables the use of light material,

such as rolled steel having greater density and closeness of grain than would be the case if cast metal were employed for the hollow longitudinal or fluid circulating sections, and, therefore, provides a lighter foundation ring, which, however, posseses the requisite strength.

The longitudinal sections may be given any desired shape or suitable cross-sectional contour, which will permit the bottoms of such sections to be nently secured to the we have illustrated several forms, itFis evident that certain other modifications may be made without, however, departing from the spirit of our invention.

What we claim is 1. A foundation ring for steam boilers, composed of solid transverse sections of cast metal and hollow longitudinal sections of sheet metal of greater density and comparative lightness, the respective sections being welded together and the transverse sections provided with angularly disposed ends having upwardly and laterally disposed ports adapted to communicate with the chambers of the longitudinal sections and Copies of this patent may be obtained for five cents each, by addressing the properly and permaside walls; and while with the water-legs of the firebox, while the longitudinal sections have their top, side and bottom w'alls rigidly secured together with the top and bottom walls provided with a-lined openings.

2. A foundation ring for steam boilers, composed of solid cast steel transverse portions having depending anchor-portions and angularly disposed ends provided with upwardly and laterally disposed ports, and longitudinal portions of channeled sheet metal sections of greater density secured together, the upper surfaces of the longitudinal portions being provided with water-tube receiving openings while the bottom surfaces thereof are provided with alined threaded openings, the transverse portions and longitudinal portions being welded together.

3. A foundation ring for steam boilers,

composed of solid transverse sections of cast metal and hollow longitudinal sections of sheet metal of greater density and comparative lightness, the respective sections being welded together and the transverse sections provided with angularly disposed ends having upwardly and laterally disposed ports and upwardly presented attaching flanges about said ports, while the longitudinal sections have their tops, sides and bottom walls rigidly secured together.

PATRICK TRESTON DUNLOP. HENRY W. JACOBS.

Witnesses:

R. EMERSON, WM. J. LEIGHTY.

Commissioner of Patents.

Washington, D. G. 

